Refuse and Sewage Disposal
- Previous year questions on Refuse and Sewage Disposal for NEET PG (National Eligibility cum Entrance Test - Postgraduate), from the Community Medicine section of the exam.
- Most questions here come from previous-year papers of Indian postgraduate medical entrance and licensing exams; where a paper and year are recorded the question carries them. The image-based questions are original vignettes written around an openly licensed figure, and were never asked in any exam.
- 11 live questions in Refuse and Sewage Disposal.
- 2 of 11 questions carry a verified exam year: 2018, 2019.
- Community Medicine is worth about 25 of 300 questions on the exam. See every subject’s weightage.
- Question set last updated 3 Sept 2026.
Q1.For the population of 10000, Trench method sanitary landfill pit of depth 2m is to be constructed. How much area is required per year?
- A1 acre✓ Correct answer
- B2 acres
- C3 acres
- D4 acres
Q2.Most important factor in sewage treatment:
- ABacterial count
- BSolids✓ Correct answer
- CNitrite and phosphorus
- DWater content
Q3.Me thod for waste disposal in small camps-
- ABurial✓ Correct answer
- BTipping
- CCompositing
- DManure pits
Q4.Biological oxidation demand is determined by
- ASullage
- BSuspended Solids
- CAlgae in water
- DOrganic matter✓ Correct answer
Q5.Oxidation pond is used in---------treatment –
- ASewage✓ Correct answer
- BEffluent
- CNight soil
- DSullage
Q6.Which of the following statement regarding Septic tank is true ?
- AThe minimum capacity of a septic tank should be at least 100 gallons
- BA capacity of 20-30 gallons or 2 & half to 5 c.ft. per person is recommended for household septic tanks✓ Correct answer
- CThe length of septic tank is usually equal to its breadth.
- DThere should be a minimum air space of 3 cm between level of liquid in the tank & under-surface of the cover
Q7.Trickling filter is used in -
- APrimary treatment of sewage
- BSecondary treatment of sewage✓ Correct answer
- COxygen ponds
- DSewage farming
Q8.The heart to the activated sludge process is –
- APrimary sedimentation tank
- BSludge digestor
- CAeration tank✓ Correct answer
- DFinal settling tank
Q9.The heart of activated sludge process is
- ASecondary sedimentation tank
- BPrimary sedimentation
- CDigestion tank
- DAeration tank✓ Correct answer
Q10.An inexpensive and efficient method of sewage disposal for a small community is -
- ARiver outfall
- BOxidation pond✓ Correct answer
- CTrickling filter
- DActivated sludge
Answer key
Q1: A. 1 acre; Q2: B. Solids; Q3: A. Burial; Q4: D. Organic matter; Q5: A. Sewage; Q6: B. A capacity of 20-30 gallons or 2 & half to 5 c.ft. per person is recommended for household septic tanks; Q7: B. Secondary treatment of sewage; Q8: C. Aeration tank; Q9: D. Aeration tank; Q10: B. Oxidation pond.
Other topics in Community Medicine
- Evolution of Medicine
- Determinants and Indicators of Health
- Disease Concepts and Levels of Prevention
- Epidemiological Principles
- Descriptive Study Designs
- Analytical Study Designs: Case-Control and Cohort
- Experimental and Trial Designs
- Core Terminology in Infectious Disease Epidemiology
- Disease Transmission Dynamics
- Immunization and Vaccination Principles
- Vaccine Manufacture and Cold Chain Storage
- Disinfection and Sterilization Methods
- Screening
- Respiratory Infections of Viral Origin
- Respiratory Infections of Bacterial Origin
- Enteric and Intestinal Infections
- Arthropod-Transmitted Infections
- Viral Zoonoses
- Bacterial and Parasitic Zoonoses
- Sexually Transmitted and Surface Infections
- Cardiovascular Disease and Diabetes
- Cancer, Obesity and Blindness
- National Health Programmes: NVBDCP
- National Health Programmes: NLEP, NTEP and NACO
- National Health Programmes: NIS, JSY, RBSK and Others
- Demographic Cycle, Growth Rate and Age Pyramid
- Demographic Indicators
- Family Planning
- Preventive Care in Pregnancy, Childhood and Old Age
- Macronutrients and Energy Requirements
- Vitamins, Minerals and Water
- Food Processing, Safety and Quality
- Sociological and Psychological Concepts
- Social Structure and Health Economics
- Water Sources and Purification
- Water Disinfection
- Water Quality Standards
- Climate and Environmental Meteorology
- Housing Standards and Ventilation
- Lighting, Noise and Radiation
- Mosquitoes and Flies as Disease Vectors
- Ticks, Fleas and Mites as Disease Vectors
- Pest and Vector Control Measures
- Handling and Disposal of Biomedical Waste
- Disaster Preparedness and Response
- Occupational Diseases and Hazards
- ESI Scheme and the Factories Act
- Health Education and Communication Methods
- Planning and Management of Health Services
- Health Service Delivery in India
- Global Health and International Agencies
- Probability and Types of Data
- Measures of Central Tendency
- Measures of Variability and Dispersion
- Measures of Position: Percentiles and Z-Scores
- Principles of Inferential Statistics
- Hypothesis Testing Concepts
- Significance Testing Methods
- Correlation and Regression Techniques
- Clinical Research Design and Applied Biostatistics
- Community Mental Health
- Genetics in Public Health